AMPP Store - Products tagged with 'ac interference'

Available for download

AC Mitigation Design Considerations for Pipeline Facilities

Product Number: 51323-18867-SG

Author: Hycem Bahgat, Sorin Segall, Ernesto Gudino

Publication Date: 2023

$20.00

When a pipeline is co-located with an AC powerline, it is subject to AC interference effects. These AC interference effects can result in safety hazards to operating personnel and the public under powerline steady-state (normal operation) and fault (short-circuit) conditions.

Available for download

AMPP Guide 21569-2024, Guidance on Implementing Corrosion Control Methodologies to Align with New PHMSA Regulatory Procedures

Product Number: AMPP Guide 21569-2024

Publication Date: 2024

$109.00

In August 2022, the United States Department of Transportation Pipeline and Hazardous Materials Safety Administration (PHMSA) revised the Federal Pipeline Safety Regulations to improve the safety of onshore gas transmission lines. PHMSA expects the new requirements will reduce the frequency and consequences of failures and incidents involving onshore natural gas transmission pipelines through earlier detection of threats to pipeline integrity, including those resulting from corrosion or extreme weather events. Additionally, revisions to the regulations address several other areas, including management of change processes, corrosion control, and criteria to repair pipelines. New corrosion control regulations were incorporated into the following sections of the United States Code of Federal Regulations (CFR) Title 49, Part 192, Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards: 192.319, 192.461, 192.465, 192.473, and 192.478. Additionally, revisions to Sections 192.485 and 192.714 include remedial measures for transmission lines impacted by corrosion.

PHMSA’s Regulation Identifier Number (RIN) 2137-AF39 entitled “Pipeline Safety: Safety of Gas Transmission Pipelines: Repair Criteria, Integrity Management Improvements, Cathodic Protection, Management of Change, and Other Related Amendments” (also known as RIN 2 or the Gas Mega Rule) increases pipeline safety regulatory requirements in 49 CFR 192 for operations, maintenance and integrity management.

Available for download

Case Study - Sharing An AC Mitigation System

Product Number: 51322-17786-SG

Author: Hycem Bahgat

Publication Date: 2022

$20.00

AC interference analysis between high voltage AC (HVAC) powerlines and buried pipelines is a matter of current interest due to the growing number of right-of-ways shared between powerline and pipeline infrastructure. This is only expected to increase as the worldwide energy demand grows considerably over the next 30 years,¹ and stricter environmental regulations and policies are applied. Therefore, AC interference will continue to be an issue of concern for powerline and pipeline operators to protect the public, environment, and maintain asset integrity.

Available for download

Case Study of AC interference on an Urban Gas Pipeline: Field Test AC Mitigation Design and Assessment

Product Number: 51317--8914-SG

ISBN: 8914 2017 CP

Author: Xiaxi Li

Publication Date: 2017

$20.00

This study attempted to exemplify the AC mitigation design practice for an urban gas pipeline by numerical calculation, including AC interference risk evaluation, AC mitigation design and mitigation effectiveness assessment.

Available for download

Comprehensive Laboratory Analysis Of AC Coupon Test Stations

Product Number: 51322-18151-SG

Author: Mehrooz Zamanzadeh, Martin Latona, George Bayer, Anil Kumar Chikkam

Publication Date: 2022

$20.00

Several alternating current (AC) coupon test stations (CTS) located near AC power lines were investigated to assess the AC interference corrosion risk of the test coupons. Asstation consisted of two ½ inch (1.27 cm) diameter and 1received each AC test inch (2.54 cm) long carbon steel (CS ) coupons. Coupons are much larger than 1 cm ² and current density measurements are not 100% relatable to the SP21424 or ISO 18086 criteria, since these refer to measurements on (typically) 1 cm² . The current densities measured on the coupons in this study will underestimate the AC corrosion threat.

Available for download

DC Decoupler Modelling To Predict The Effects Of Capacitance On CP Potential Surveys

Product Number: 51322-17839-SG

Author: Alex Ristow, Mike Tachick

Publication Date: 2022

$20.00

Extensive and increased collocation of high voltage AC (HVAC) electrical transmission lines, coupled with advances in coating technology, has resulted in the emergence of the possibility of transfer of electrical energy from the HVAC line to paralleling utilities through electrical induction. That transfer of energy can result in safety risks for personnel, as well as corrosion risks for below grade assets. In order to mitigate those risks, operators ground the induced AC using grounding electrodes, typically consisting of bare copper cabling or zinc ribbon.

Available for download

Fusion Bonded Epoxy Coatings (FBE) and Disbondment

Product Number: 51316-7246-SG

ISBN: 7246 2016 CP

Author: Mehrooz Zamanzadeh

Publication Date: 2016

$20.00

In this paper, failure analysis methodology will be applied to the principal mechanisms by which FBE coatings fail during long term service; with specific application to case studies involving blistering. The case studies apply standard failure analysis techniques to determine the primary causes and modes of failures.

Available for download

HVDC & HVAC Powerline Interference On Cross Country Pipeline: A Case Study

Product Number: 51321-16614-SG

Author: Manish Mishra

Publication Date: 2021

$20.00

Available for download

Innovative Mitigation Strategies to Address Ac Corrosion At Higher Frequencies

Product Number: 51323-19280-SG

Author: Wolfgang Fieltsch, J. Scott Farquharson

Publication Date: 2023

$20.00

A corrosion investigation performed in 2018 on an NPS 6, approximately 4 km long, polyethylene coated pipeline determined that the accelerated corrosion anomalies detected during in-line inspections (ILI) were due to AC corrosion. The AC and DC current densities on the AC coupons adjacent to these anomalies were above the limits recommended in NACE SP21424. It was also determined that the line was cathodically over-protected, and that most of the AC voltage measured on the line was due to 120 Hz AC ripple from a foreign rectifier.

Available for download

Mitigation of Arcing Risks to Pipelines Due to Faults at Adjacent Powerline Structures

Product Number: 51314-4389-SG

ISBN: 4389 2014 CP

Author: Bryon Winget

Publication Date: 2014

$20.00

This paper discusses how to determine the “safe” separation distance that is required for transmission powerline tower and an adjacent pipeline to avoid an arc from the former to the latter - based on research literature and standards. Mitigation.

Available for download

Optimizing Pipeline AC Threat Assessments using Computational Aided Engineering (CAE) Modelling

Product Number: 51323-19219-SG

Author: Christophe Baeté, Dr Olga Dolgikh

Publication Date: 2023

$20.00

There are several well documented reports and standards that detail what information is required to assist with an AC threat assessment. The Association for Materials Protection and Performance (AMPP) also details specific requirements and recommendations in terms of AC and the type of data and information required, in the NACE standard SP0177-2019, “Mitigation of Alternating Current and Lightning Effects on Metallic Structures and Corrosion Control Systems”. The documents and reports which address AC threat assessment, and which are available today, are all premised upon best engineering practices.

Peabody's Control of Pipeline Corrosion, 3rd Edition

Product Number: 37617-POD

ISBN: 978-1-57590-336-1

Author: by A.W. Peabody, edited by Ronald Bianchetti

$160.00

This is a print-on-demand (POD) book that will be produced just for you in 2-5 days after your order. It should arrive at your door in about one to two weeks. However, due to supply chain and logistic challenges currently affecting the industry, it may take longer. Allow three weeks for international orders.

For over 50 years Control of Pipeline Corrosion, written by A.W. Peabody, has been the most trusted resource in the field of pipeline corrosion. This revised and updated third edition of the classic reference continues the tradition of excellence by providing the most thorough and authoritative coverage of the prevention and control of pipeline corrosion, and now includes a chapter on AC interference.

Peabody's Control of Pipeline Corrosion, Third Edition, edited by Ronald Bianchetti, blends traditional corrosion engineering practices with modern technologies to make this the single source for corrosion control. Chapters have updated information and graphics to expand on the user-friendly nature of the original book.

2018 NACE, 316 pages, 8 x 10" trim size, soft bound.